Meter-prover.



R. L. DEZENDORP. METER HOVER.

APPLICATION ILBD JAR. 25, 1909.

Patented July 19, Y1910.

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METER PROVEB.

APPLICATION runnumzs. 190s.

Patented July 19, 1910.

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`UNITED sTATEs 'PATENT oEEIcE.

RICHARD L. DEZENDORE, OF RICHMONDHILL, NEW YORK, ASSIGNOR TO AMERICANMETER COMPANY, OE NEW YORK, N. Y., A CORPORATION OF NEW YORK.

METER-PROVEER.

To all whom it may concern:

Be it known that I, Bici-IARD L. DEZEN- DORE, a citizen of the UnitedStates, residing at Richmond Hill, borough of Queens, State of New York,have invented certain new and useful Improvements in Meter-Provers, ofwhich the following is a full, clear, and exact description.

My invention relates to improvements in,

meter provers and has for its object to provide a meter prover wherebymeters may be proved on a single revolution of the tangent, if desired,resulting in a very considerable saving of time and which will provemeters with accuracy and certainty, and consists in the featureshereinafter described and particularly pointed out in the claims.

The following is a description of the embodiment of my invention,reference being had to the accompanying drawings, in which,

Figure 1 shows a side elevation of the apparatus including a meter to beproved. Fig. 2 is a plan view of the proving bell and indicator, andFig. 3 shows the scale with its support and pointer on an enlarged scalewith a modified form of standard.

Referring more particularly to the drawings, 1 is the ordinary tank of ameter prover containing water or other suitable liquid, in which thebell 2 vis adapted to be more or less submerged.

3 is a flexible pipe leading from the usual stand pipe 3 within the bell2 to the meter i and is connected thereto by a suitable coupling 5.

Attached to the outlet of the meter is a coupling 6 provided with alarge valve 7 and a small valve 8, the large valve 7 being of a capacitya trifle less than the capacityr of the meter and the small valve 8control" ling a port with a constricted orifice being the standardorifice prescribed by law forV meter proving.

The coupling 6 is provided with a rubber washer 9, which when forceddown over the meter outlet forms, an air tight closure. Connected to thecoupling by the rod 10 is a weight 11. The rod 10 is pivotally connectedat 12 to a lever 13 so that the` rod together with the weight andcoupling 6 can be lifted by raising the outer end of the lever 13 so asto be detached from the meter and when lowered so as to engage the meterit is held in position by the weight 11.

Specification of Letters Patent.

Application filed January 25, 1909.

Patented July 19, 1910.

Serial No. 473,975.

l 14 is a valve in the pipe 3 closing that pipe when desired.

15 is a valve adapted to be connected to a source of air pressure foradmitting Vair under pressure to the bell for raising the same whendesired.

16 is an air valve whereby air can be admitted to the bell when desiredwhen the bell is being raised by hand. The bell is vcounter-balanced bycounter weight 17 supported by a chain passing over the pulley 18 andconnected to the chains 19 connected to the lugs 19 at the top of thebell.

20-20 are standards connected to the tank 1 and supporting the spider21, on which the pulley 18 is mounted in bearings 22. To the standards20-20 are connected vertically adjustable collars 23, same being securedin position by set screws 24. To these collars screws 25 connect a bar26 carrying a support 27 to which is pivoted a pointer 28. This pointer28 is connected to the bell 2 by an arm 29 pivoted thereto. The outervend of the pointer 28 travels over a scale 30 which is carried 'by thebar 26.

The bar 26 is provided with holes 31 and 32 whereby the support 27 andthe scale 30 can be adjusted to different positions on the bar 25. Thepointer 28 has a hole 33 so that the position of the arm 29 to thepointer 28 can be changed when the position of the standard 27 and scale30 are changed. Such changes result in a change in the movement of thepointer 28 for a given change in position of the bell 2.

Upon the scale 30 are adjustable clips 34, 35, the first having a singleline indicating the position at starting the test. Clip 35 has a seriesof marks, one of which is the correct finishing mark while the othersenable the accurate reading of and difference between the actualindication given by the pointer and what would be the correctindication.

In testing meters by the apparatus above described, it is to be notedthat the air passing through the meter is controlled by cocks on theoutlet side of the meter, one being a large cock and the other a cockcontrolling a standard testing orifice. In testing the top of the` meteris removedso as to disclose the tangent. The bell 2 is first filled withair, being lifted so that the pointer 28 is raised to some point on the`scale 30 considerably above the mark 3a.

The air is then discharged through the meter using the large portcontrolled by the'cock 7 until the pointer of the proving device reachesthe starting point on the clip 34. The valve 7 is then closed. Theposition of the tangent is then observed and indicated by a mark uponthe meter. The large port is then opened by the valve 7 and the meter ispermitted to run until the tangent makes one complete revolution. A noteis taken of the distance traveled by the pointer 28. The bell 2 is againraised and the operation is repeated, using the small orifice controlledby the valve 8 as an outlet, and the distance traveled by the pointer 28for one complete revolution of the tangent is again noted. Thisoperation is repeated and the necessary changes in the adjustments ofthe tangent and valves are made until the pointer 28 shows that themeter is properly adjusted and until the meter registers accurately withboth the large and small port. After that the top of the meter issoldered on; the meter is painted up and is ready for installation. Inmaking each of these tests with the large and small port only onerevolution of the tangent is necessary for each such test. If desired,the clips 34 and 35 may be adjusted so that their positions correspondto a plurality of revolutions of the tangent, although with myapparatus, I have found that perfect accuracy may be obtained When onlyone revolution of the tangent is permitted. By using a large bell 2 asshoWn such a plurality of revolutions can be secured, if desired. Thedevice also permits of testing the meter by introducing a small amountof air in the bell sufiicient only to produce one or a trifle more thanone revolution of the tangent. By using such a small amount of air,difficulties heretofore experienced on account of the expansion andcontraction of air Within the bell, Which When the amount Within thebell is considerable, is liable to introduceA error, can be avoided.

By having the air Whichv passes through the meter controlled by cocksupon the outlet port of the meter, the internal and eX- ternal pressuresupon the diaphragms of the meters always conform to those Which wouldVbe found under the conditions of actual use. The fulcrum of the pointercan be varied and the scale moved in and out'so as to adjust theapparatus to meters of different capacities. The distance of the bellfrom the pointer can be also adjusted if it is found desirable to havethe bell at the highest possible elevation.

The indicator marks upon the proving scale could be adjusted by movingthe clips so that the indicating device can be adapted to meter provershaving bells of different diameters.

The indicating device is direct reading and there is no lost motion inany Dart between the bell and the pointer. The bar 25 carrying the scaleis connected to the uprights by adjustable collars and is connected tothose collars by screws passing through elongated openings permit-ting aslight adjustment in all directions. If desired, an auxiliary frame,such as shown in Fig. 3, may be connected to the holder l for supportingthe scale and the pointer if desired, sockets 36 with set screws 37being provided for the lower ends thereof. The connection between thebell and the pointer is directly over a portion of the bell and so nearits center as not to interfere with the action of the bell in any Way.

What I claim is:

1. In a meter prover, the combination of a tank adapted to containWater, a bell within said tank, an outlet for said bell adapted to becoupled to a meter, an indicating device consisting of a stationaryscale and a pointer mounted on a fixed fulcrum, said pointer beingpivotally connected to said bell at a point near said fulcrum and remotefrom the free end of said pointer so as to avoid lost motion, supportinguprights connected to said tank and a vertically adjustable barconnected to said uprights and carrying said scale and said fulcrum ofsaid pointer.

2. In a meter prover, the combination of a tank adapted to containWater, a bell Within said tank, an outlet for said bell adapted to becoupled to a meter, an indicating device consisting of a stationaryscale and a pointer mounted on a fixed fulcrum, said pointer beingpivotally connected to said bell at a point near said fulcrum and remotefrom the free end of said pointer so as to avoid lost motion, supportinguprights carried by said tank, adjustable collars upon said uprights anda bar secured to said collars and carrying said scale, and also thefulcrum of said pointer.

3. In a meter proving device, the combination of a tank adapted tocontain Water, a bell Within said tank, a multiplying indicating deviceconsisting of a scale and a pointer, one of Which members is connectedto said bell, the connection of said bell with the moving member beingnear to said fulcrum and remote from the free end of said moving device,a coupling adapted to be connected to the outlet port of said meter,said coupling having a constricted port, a cock controlling saidconstricted port, and also a second port of slightly less capacity thanthe capacity of said meter, and a cock controlling said second port.

4. In a meter proving device, the combination of a tank adapted tocontain Water, a bell Within said tank, a multiplying indicating deviceconsisting of a scale and a pointer, one of Which members is pivotallyconnected to said bell and to a, stationary fulci'um,tlie paeity of saidmeter, and means for closing connection of said bell with the moving andopening said constricted and second l0 member being near to said fulciumand reports. mote from the free end of said movino` clef vice, acoupling adapted to be connectd to RICHARD L' DEENDORF' the outlet portof said meter, said coupling Witnesses:

having a constrictecl port, and also a second ALICE MORFORD,

port of slightly less capacity than the eal M. E. GARRETT.

